JoshHeaps.Net/JoshHeaps.Net/wwwroot/js/casino/holdem/state.js

// Table state: seats, chips, blinds, notes. Persisted to localStorage so a dealer's
// browser refresh mid-game doesn't lose the table.
const HoldemState = {
    STORAGE_KEY: "casino.holdem.state.v1",
    DEFAULT_SEAT_COUNT: 10,

    DEFAULT_CHIP_LEGEND: [
        { id: "white", color: "#f5f5f5", value: 1 },
        { id: "red", color: "#c0392b", value: 5 },
        { id: "green", color: "#1e8449", value: 25 },
        { id: "black", color: "#111111", value: 100 },
        { id: "purple", color: "#6c3483", value: 500 },
    ],

    makeId(prefix) {
        return `${prefix}-${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 8)}`;
    },

    makePlayer() {
        return {
            id: this.makeId("player"),
            name: "",
            inHand: false,
            folded: false,
            cards: ["", ""],
            chipCounts: {},
            amountOverride: null,
            customFields: [],
        };
    },

    MAX_HISTORY_ENTRIES: 200,

    createDefault() {
        const seatCount = this.DEFAULT_SEAT_COUNT;
        return {
            seatCount,
            direction: "clockwise",
            basePotAmount: null,
            dealerSeatIndex: 0,
            dedicatedDealer: false,
            chipLegend: this.DEFAULT_CHIP_LEGEND.map(c => ({ ...c })),
            seats: Array.from({ length: seatCount }, () => this.makePlayer()),
            notes: "",
            handNumber: 1,
            handHistory: [],
        };
    },

    load() {
        try {
            const raw = localStorage.getItem(this.STORAGE_KEY);
            if (!raw) return this.createDefault();
            const parsed = JSON.parse(raw);
            if (!parsed || !Array.isArray(parsed.seats)) return this.createDefault();
            if (typeof parsed.handNumber !== "number" || parsed.handNumber < 1) parsed.handNumber = 1;
            if (!Array.isArray(parsed.handHistory)) parsed.handHistory = [];
            return parsed;
        } catch {
            return this.createDefault();
        }
    },

    save(state) {
        try {
            localStorage.setItem(this.STORAGE_KEY, JSON.stringify(state));
        } catch {
            // Storage full/unavailable (private browsing, etc.) — the table still works
            // for the rest of the session, it just won't survive a refresh.
        }
    },

    clear() {
        try {
            localStorage.removeItem(this.STORAGE_KEY);
        } catch {
            // ignore
        }
    },

    resizeSeats(state, newCount) {
        const count = Math.max(2, Math.min(24, Math.floor(newCount) || this.DEFAULT_SEAT_COUNT));
        const seats = state.seats.slice(0, count);
        while (seats.length < count) seats.push(this.makePlayer());
        state.seats = seats;
        state.seatCount = count;
        if (state.dealerSeatIndex >= count) state.dealerSeatIndex = 0;
        return state;
    },

    // What to call a seat in logs, payouts and standings when the dealer hasn't
    // typed a name in yet.
    displayName(player, seatIndex) {
        return player.name && player.name.trim() ? player.name.trim() : `Seat ${seatIndex + 1}`;
    },

    // Contribution the table calculator will treat this player as having put in.
    computeContribution(player, chipLegend, basePotAmount) {
        if (!player.inHand) return 0;

        const override = player.amountOverride;
        if (override !== null && override !== undefined && String(override).trim() !== "") {
            const parsed = Number(override);
            if (!Number.isNaN(parsed)) return Math.max(0, parsed);
        }

        const chipTotal = chipLegend.reduce((sum, chip) => {
            const count = Number(player.chipCounts[chip.id]) || 0;
            return sum + count * Number(chip.value || 0);
        }, 0);
        if (chipTotal > 0) return chipTotal;

        const base = Number(basePotAmount);
        return Number.isNaN(base) ? 0 : Math.max(0, base);
    },

    totalPot(state) {
        return state.seats.reduce(
            (sum, p) => sum + this.computeContribution(p, state.chipLegend, state.basePotAmount),
            0
        );
    },

    // Next occupied-by-index seat in the current blind direction. Every seat index
    // counts (there's no separate "empty chair" concept) — a dealer running fewer
    // players just keeps the seat count matched to who's actually sitting down.
    nextSeatIndex(state, fromIndex, step = 1) {
        const count = state.seatCount;
        const delta = state.direction === "counterclockwise" ? -step : step;
        return ((fromIndex + delta) % count + count) % count;
    },

    advanceButton(state) {
        state.dealerSeatIndex = this.nextSeatIndex(state, state.dealerSeatIndex, 1);
    },

    getBlindSeats(state) {
        const sbIndex = this.nextSeatIndex(state, state.dealerSeatIndex, 1);
        const bbIndex = this.nextSeatIndex(state, state.dealerSeatIndex, 2);
        return { dealerIndex: state.dealerSeatIndex, sbIndex, bbIndex };
    },

    startNextHand(state) {
        this.advanceButton(state);
        state.seats.forEach(p => {
            p.folded = false;
            p.cards = ["", ""];
            p.chipCounts = {};
            p.amountOverride = null;
        });
    },

    // Appends a resolved-pot record to the running session log a dealer can point to
    // for chip-count disputes, then advances the hand counter. `payouts` is
    // [{ id, label, amount }, ...] — who got paid what out of this hand's pot(s).
    //
    // Must be called before startNextHand() clears the seats: the per-player `ledger`
    // it stores alongside the payouts is what session standings are summed from later,
    // and it needs this hand's contributions while they're still on the table.
    recordHand(state, payouts) {
        if (typeof state.handNumber !== "number") state.handNumber = 1;
        if (!Array.isArray(state.handHistory)) state.handHistory = [];

        const pot = payouts.reduce((sum, p) => sum + p.amount, 0);
        const wonById = new Map(payouts.map(p => [p.id, p.amount]));
        const ledger = state.seats
            .map((player, index) => ({
                id: player.id,
                name: this.displayName(player, index),
                in: this.computeContribution(player, state.chipLegend, state.basePotAmount),
                won: wonById.get(player.id) || 0,
            }))
            .filter(row => row.in > 0 || row.won > 0);

        state.handHistory.unshift({
            handNumber: state.handNumber,
            timestamp: Date.now(),
            pot,
            payouts,
            ledger,
        });
        if (state.handHistory.length > this.MAX_HISTORY_ENTRIES) {
            state.handHistory.length = this.MAX_HISTORY_ENTRIES;
        }
        state.handNumber += 1;
    },

    clearHistory(state) {
        state.handHistory = [];
        state.handNumber = 1;
    },

    // Running per-player totals for the whole session, so a dealer settling up at the
    // end of the night reads one number per person instead of adding up every hand.
    // Keyed by seat id, which survives renames and reseating; hands recorded before
    // the ledger existed simply don't contribute to the totals.
    sessionStandings(state) {
        const totals = new Map();

        (state.handHistory || []).forEach(entry => {
            (entry.ledger || []).forEach(row => {
                // History is newest-first, so the first name seen for an id is the
                // most recent one the dealer typed.
                const running = totals.get(row.id) || { id: row.id, name: row.name, in: 0, won: 0 };
                running.in += row.in;
                running.won += row.won;
                totals.set(row.id, running);
            });
        });

        return Array.from(totals.values())
            .map(t => ({
                ...t,
                in: Math.round(t.in * 100) / 100,
                won: Math.round(t.won * 100) / 100,
                net: Math.round((t.won - t.in) * 100) / 100,
            }))
            .sort((a, b) => b.net - a.net);
    },
};

if (typeof module !== "undefined" && module.exports) {
    module.exports = HoldemState;
}